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What is the difference between antigenic and phase variation?
MayaChoudry
The Phase Variation is the reversible ability of some bacteria to turn an and off the expression of genes coding for the surface antigens .
While the Antigenic Variation is the modification of the gene for an expressed surface antigen by genetic recombination with one of many variable unexpressed DNA sequences.
In this manner , the expressed surface antigen can assume many different antigenic structures
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∙ 12y ago
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